Three-quarter rear view of a 1987 Ford Sierra RS500, on display in the club zone of the 2017 Silverstone Classic
The Ford Sierra RS Cosworth is a high-performance version of the Ford Sierra that was built by Ford Europe from 1986 to 1992. It was the result of a Ford Motorsport project with the purpose of producing an outright winner for Group A racing in Europe Mike Moreton was head of the team that planned to develop an evolution edition aimed at making the car unbeatable on the race tracks. In March 1987, Aston Martin Tickford was signed for the job of converting the 500 cars. The Cosworth RS500 was announced in July 1987 and was homologated in August 1987. The main difference to the Sierra three-door Cosworth was the uprated Cosworth competition engine. Its new features were: The engine had a thicker walled cylinder block to cope with the rigours of the track A larger Garrett T04 turbocharger A larger air-air intercooler A second set of four fuel injectors and a second fuel rail (unused in the roadgoing version) An uprated fuel pump A reworked induction system to allow higher power outputs to be realised An uprated oil and cooling system The rear semi-trailing arm beam had extended but unused mounting points Engine output increased to 225 PS (165 kW or 222 hp) The RS500 also had minor external cosmetic differences to its parent the Sierra three-door Cosworth: The rear tail gate had a lower spoiler in addition to the upper "whale tail", which had an added lip Discreet RS500 badges on the rear tail gate and front wings A redesigned front bumper and spoiler to aid cooling and air flow, including the removal of the fog lamps and their replacement with intake grilles to supplement brake cooling. Exactly 500 RS500s were produced, all of them RHD for sale in the UK only - the biggest market for this kind of Ford car. It was originally intended that all 500 would be black, but in practice 56 white and 52 moonstone blue cars were produced . Some European Tuners, missing a LHD RS500 version, have set up some elaborate versions of the Sierra RS Cosworth for private customers,
Size: 5203px × 2719px
Location: Silverstone Circuit, Towcester, United Kingdom
Photo credit: © John Gaffen / Alamy / Afripics
License: Licensed
Model Released: No
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